Canon BJC-3000 - Manual (Page 199)

199 Troubleshooting - Printout is Unsatisfactory
Enlarged/reduced printing not correct
A print job set up for Scaled Printing in the printer driver is not executing correctly.
Check 1 Does the size of the paper in the printer match the Page Size setting in the
printer driver?
Check 2 Are you using the correct paper size for Scaled Printing?
Windows